The Hidden Billionaire by Mr. Hulk

When Ethan Kim marries into South Korea’s most ruthless corporate dynasty, the world sees a lucky, quiet husband elevated overnight by the iron-willed heiress, Rachel Han.
But Ethan is no ordinary man.
Behind his calm eyes and forgettable smile lies a hidden fortune, a buried identity, and a past sealed behind fire and blood. As Rachel begins dismantling her father's empire from within, she discovers her new husband isn't a pawn — he’s a weapon. And he’s been waiting years for this moment.
Every move they make shakes the foundation of the Han family. Allies become enemies. Old sins resurface. And in a world where silence is survival and wealth is war, love is never pure — only strategic.
Power built on lies is power waiting to fall.